Answers

Add 90/42 and 28/30

1^st number: 2 6/42, 2^nd number: 28/30

90/42 + 28/30 is 323/105.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 30 is 210
   
   Next, find the equivalent fraction of both fractional numbers with denominator 210
2. For the 1st fraction, since 42 × 5 = 210,
   90/42 = 90 × 5/42 × 5 = 450/210
3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
   28/30 = 28 × 7/30 × 7 = 196/210
4. Add the two like fractions:
   450/210 + 196/210 = 450 + 196/210 = 646/210
5. 646/210 simplified gives 323/105
6. So, 90/42 + 28/30 = 323/105
   In mixed form: 38/105

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